CVE-2018-9846

high

Description

In Roundcube from versions 1.2.0 to 1.3.5, with the archive plugin enabled and configured, it's possible to exploit the unsanitized, user-controlled "_uid" parameter (in an archive.php _task=mail&_mbox=INBOX&_action=plugin.move2archive request) to perform an MX (IMAP) injection attack by placing an IMAP command after a %0d%0a sequence. NOTE: this is less easily exploitable in 1.3.4 and later because of a Same Origin Policy protection mechanism.

References

https://github.com/roundcube/roundcubemail/issues/6229

https://github.com/roundcube/roundcubemail/issues/6238

https://medium.com/@ndrbasi/cve-2018-9846-roundcube-303097048b0a

https://www.debian.org/security/2018/dsa-4181

Details

Source: MITRE

Published: 2018-04-07

Updated: 2018-05-24

Type: CWE-20

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH